Anritsu MT9812B, Руководство по эксплуатации, Страница: 81 / 144

5-13
Remote Control
5
5.3 Device Message
SENSe<n>:POWer:RANGe[:UPPer]
Function
Sets manual range.
Program message
SENSe<n>:POWer:RANGe[:UPPer] < level > [DBM]
SENSe<n>:POWer:RANGe[:UPPer]?
Response message
< level >
Parameter
< level >
:= {30, 20, 10, 0, –10, –20, –30, –40, –50, –60, –70, –80, –90, –100, –110}
Explanation
This command executes measurements in the fixed <level> measuring range
when the “MANUAL range” mode is set in the “SENSe<n>:POWer:RANGe
:AUTO” setting. The units are “DBM” only or the units can be omitted.
POINT
• In the case of “AUTO range” mode, a certain time lag
is unavoidable for switching the range. It is therefore
recommended that the measurements be made in the
“MANUAL range” mode when the optical level to be
measured is roughly known or the variation of its
level is not significant (2 to 3 dB).
• When you switch from “AUTO range” mode to
“MANUAL range” mode, the measuring range be-
comes the last range of the “AUTO range”, and not
that of “MANUAL range” which was set previously.
• The <level> depends on the “optical power measuring
range” of the unit currently in use and the bandwidth
that is set in “SENSe<n>:BANDwidth.” It may not be
possible to set some <level> values in a unit. Refer to
paragraph “2.2 Specifications” and descriptions of
bandwidth setting for the range of each unit currently
in use.